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- PDB-3nda: Crystal structure of serpin from tick Ixodes ricinus -

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Basic information

Entry
Database: PDB / ID: 3nda
TitleCrystal structure of serpin from tick Ixodes ricinus
ComponentsSerpin-2
KeywordsHYDROLASE INHIBITOR / serpin / vaccination target / tick
Function / homology
Function and homology information


immune system process / serine-type endopeptidase inhibitor activity / toxin activity / extracellular space
Similarity search - Function
Antithrombin; Chain I, domain 2 / Antithrombin, subunit I, domain 2 / Alpha-1-antitrypsin; domain 1 / Alpha-1-antitrypsin, domain 1 / Serpin, conserved site / Serpins signature. / Serpin superfamily, domain 2 / Serpin family / Serpin domain / Serpin superfamily ...Antithrombin; Chain I, domain 2 / Antithrombin, subunit I, domain 2 / Alpha-1-antitrypsin; domain 1 / Alpha-1-antitrypsin, domain 1 / Serpin, conserved site / Serpins signature. / Serpin superfamily, domain 2 / Serpin family / Serpin domain / Serpin superfamily / Serpin superfamily, domain 1 / Serpin (serine protease inhibitor) / SERine Proteinase INhibitors / Roll / 2-Layer Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
Biological speciesIxodes ricinus (castor bean tick)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.8 Å
AuthorsRezacova, P. / Kovarova, Z. / Chmelar, J. / Mares, M.
CitationJournal: Blood / Year: 2011
Title: A tick salivary protein targets cathepsin G and chymase and inhibits host inflammation and platelet aggregation.
Authors: Chmelar, J. / Oliveira, C.J. / Rezacova, P. / Francischetti, I.M. / Kovarova, Z. / Pejler, G. / Kopacek, P. / Ribeiro, J.M. / Mares, M. / Kopecky, J. / Kotsyfakis, M.
History
DepositionJun 7, 2010Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Oct 27, 2010Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Sep 11, 2013Group: Database references
Revision 1.3Nov 1, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / diffrn_source / pdbx_initial_refinement_model / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _diffrn_source.pdbx_synchrotron_site / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Serpin-2
B: Serpin-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)84,5343
Polymers84,2952
Non-polymers2381
Water15,763875
1
A: Serpin-2


Theoretical massNumber of molelcules
Total (without water)42,1481
Polymers42,1481
Non-polymers00
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
B: Serpin-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)42,3862
Polymers42,1481
Non-polymers2381
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)84.575, 84.575, 124.412
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number78
Space group name H-MP43
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21B

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Components

#1: Protein Serpin-2


Mass: 42147.719 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Ixodes ricinus (castor bean tick) / Plasmid: pET-like / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 (DE3) / References: UniProt: Q06B74
#2: Chemical ChemComp-1PE / PENTAETHYLENE GLYCOL / PEG400


Mass: 238.278 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H22O6 / Comment: precipitant*YM
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 875 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.64 Å3/Da / Density % sol: 53.4 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: 20mM HEPES pH 7.2, 0.075M MES pH 6.5, 9 % (w/v) PEG 20000, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: EMBL/DESY, HAMBURG / Beamline: X12 / Wavelength: 0.953 Å
DetectorType: MARMOSAIC 225 mm CCD / Detector: CCD / Date: May 27, 2009
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.953 Å / Relative weight: 1
ReflectionResolution: 1.8→84.52 Å / Num. all: 80571 / Num. obs: 80249 / % possible obs: 99.6 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.8 % / Biso Wilson estimate: 23.2 Å2 / Rmerge(I) obs: 0.046 / Net I/σ(I): 32.8
Reflection shellResolution: 1.8→1.86 Å / Redundancy: 3.3 % / Rmerge(I) obs: 0.358 / Mean I/σ(I) obs: 2.3 / Num. unique all: 7790 / % possible all: 97.3

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Processing

Software
NameVersionClassification
MOLREPphasing
REFMAC5.3.0037refinement
HKL-3000data reduction
HKL-3000data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1HLE
Resolution: 1.8→30 Å / Cor.coef. Fo:Fc: 0.966 / Cor.coef. Fo:Fc free: 0.947 / SU B: 5.16 / SU ML: 0.083 / Cross valid method: THROUGHOUT / ESU R Free: 0.118 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.21222 4026 5 %RANDOM
Rwork0.17073 ---
obs0.17283 76177 99.62 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: BABINET MODEL WITH MASK
Displacement parametersBiso mean: 26.216 Å2
Baniso -1Baniso -2Baniso -3
1--0.87 Å20 Å20 Å2
2---0.87 Å20 Å2
3---1.73 Å2
Refinement stepCycle: LAST / Resolution: 1.8→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms5898 0 16 875 6789
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0110.0226281
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.221.9678557
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.0285812
X-RAY DIFFRACTIONr_dihedral_angle_2_deg34.64324.286308
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.15151109
X-RAY DIFFRACTIONr_dihedral_angle_4_deg12.7241545
X-RAY DIFFRACTIONr_chiral_restr0.0850.2973
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.024809
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined0.2030.23035
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined0.3040.24323
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1380.2790
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.1680.291
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.1230.267
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.5621.53945
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it0.88326239
X-RAY DIFFRACTIONr_scbond_it1.5932588
X-RAY DIFFRACTIONr_scangle_it2.5384.52283
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
Refine LS restraints NCS

Dom-ID: 1 / Auth asym-ID: A / Ens-ID: 1 / Refine-ID: X-RAY DIFFRACTION

NumberTypeRms dev position (Å)Weight position
1454medium positional0.350.5
1321loose positional0.665
1454medium thermal1.272
1321loose thermal1.710
LS refinement shellResolution: 1.802→1.849 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.315 285 -
Rwork0.247 5415 -
obs--96.38 %
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL112)L122)L132)L222)L232)L332)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T112)T122)T132)T222)T232)T332)Origin x (Å)Origin y (Å)Origin z (Å)
16.29373.08230.142120.57443.05845.9160.1293-0.22280.5630.3699-0.28630.489-0.5634-0.50880.157-0.0590.0460.0395-0.00040.0081-0.003713.47932.1253.62
21.15172.2236-0.55864.2978-1.01311.1827-0.16410.26440.0907-0.51640.2598-0.1450.0067-0.1425-0.0956-0.0194-0.00080.06670.00610.0199-0.002719.26822.133-6.612
35.08891.29580.71533.12551.42884.742-0.08360.39870.3028-0.44880.1260.0881-0.5339-0.3067-0.04250.02690.04290.0476-0.01030.01050.007317.22934.732-2.303
40.8516-0.70410.35075.0735-2.04891.27090.12760.0677-0.0014-0.0229-0.0484-0.19830.08870.0335-0.0791-0.0227-0.0093-0.0374-0.038-0.04170.031325.44327.03514.537
52.16860.7717-0.98470.3231-0.44150.61790.188-0.03510.25430.1073-0.0570.1212-0.14160.1147-0.1310.0141-0.00040.1101-0.0393-0.00040.210935.08134.427-4.436
63.77372.3307-3.57911.8182-1.75133.95150.1003-0.10910.0898-0.01-0.03270.162-0.07740.1515-0.0677-0.08450.0209-0.00310.01840.03640.106940.89221.481-3.25
72.23551.1135-3.16721.5016-1.93595.30450.02790.03830.1493-0.06910.0034-0.17630.01580.1482-0.0313-0.1171-0.0015-0.0231-0.04450.00080.042330.65116.911.557
81.46712.15725.00448.67915.158227.54420.0861-0.1259-0.13060.1043-0.1917-0.39970.86780.25710.10560.03160.04130.0307-0.0829-0.0089-0.00819.881-5.61618.626
91.8185-0.7937-0.01722.15630.19032.6598-0.0850.0429-0.1414-0.08070.00230.02940.2208-0.17590.0827-0.0722-0.04890.0222-0.1033-0.0369-0.09738.6782.90210.613
101.0402-0.0044-0.21581.79160.61692.2876-0.02430.11940.03550.030.0158-0.12850.1356-0.0880.0085-0.1233-0.02220.0116-0.0894-0.0256-0.083810.67111.1796.924
112.50860.3284-0.71946.4059-6.894216.1840.01940.02990.23830.2090.22190.1324-0.4355-0.3821-0.2413-0.12410.0035-0.011-0.046-0.0571-0.07173.43616.21712.026
120.90070.9557-1.1012.6007-1.73882.4759-0.1480.26640.0478-0.39660.1507-0.22160.1383-0.2189-0.0027-0.0393-0.02290.0531-0.00240.00290.011121.94817.874-7.159
131.391.202-1.78322.8095-2.29143.8529-0.04620.21850.0986-0.18490.0226-0.2253-0.0485-0.01160.0236-0.1071-0.00980.0429-0.04820.00870.055726.92418.16-2.892
141.2307-0.5937-0.57642.91570.06722.2288-0.06450.0053-0.01930.09220.005-0.09680.2184-0.13770.0595-0.1221-0.02010.0035-0.0974-0.0287-0.116911.3627.9689.77
150.9840.71250.39897.58021.87042.7373-0.05730.07270.06470.09090.0099-0.07870.05240.02160.0474-0.1531-0.00960.0292-0.0955-0.0157-0.049717.31414.2215.249
1613.0306-7.23611.26268.99380.137510.6663-0.0251-0.49590.59810.39420.6311-1.2331-0.10491.214-0.6061-0.0762-0.0034-0.04410.1486-0.17670.077572.35123.13320.258
1716.8053-3.80452.84224.90160.17455.59780.01630.07280.3274-0.08370.0792-0.2465-0.17610.0447-0.0956-0.0696-0.01120.0472-0.0759-0.0253-0.187959.20825.08514.149
181.628-0.7146-1.50032.40581.50662.4637-0.02180.10150.0056-0.0205-0.0510.02910.0295-0.07110.0728-0.0924-0.0141-0.0062-0.0277-0.0373-0.173359.26416.67111.014
196.1247-1.1325-0.12244.0512.587611.80970.18290.02310.6806-0.21950.1592-0.4826-0.85061.0376-0.3421-0.0151-0.06660.07940.0397-0.05150.022370.40222.82810.15
2013.37291.2781-4.77965.06292.17034.5182-0.16960.7041-0.04930.11190.552-0.79160.40970.7448-0.3824-0.10860.0562-0.04470.2142-0.16590.021775.32915.33516.115
215.5853-0.5526-4.75835.10310.320326.6636-0.0484-0.5897-0.01010.4120.0989-0.08411.31451.126-0.05050.20470.1319-0.13130.1623-0.0196-0.004669.36313.00629.249
221.2404-0.0223-1.16090.73681.0545.3343-0.2870.0349-0.43740.5102-0.0194-0.21870.91980.18410.30640.20040.06670.030.0036-0.0279-0.004765.9241.27116.717
233.97310.5567-0.82192.75570.84123.1038-0.3839-0.0881-0.62620.36860.04380.05110.83810.08780.340.20990.02380.1097-0.0405-0.03170.026863.266-2.42513.93
249.2709-1.6027-4.46025.06343.641911.696-0.38350.5735-0.79650.5813-0.25170.37060.8417-0.81820.63520.1482-0.14170.1672-0.038-0.10270.028851.3811.70818.089
251.9035-1.8323-3.10173.55183.8386.6878-0.31230.0267-0.23830.5851-0.03310.06750.8209-0.13890.34530.0502-0.04810.0578-0.0358-0.0218-0.147155.16210.35623.937
261.1740.333-0.15161.3534-0.72221.30230.1543-0.15710.17770.2125-0.07420.1409-0.0407-0.0361-0.0801-0.0012-0.02780.0712-0.0315-0.0644-0.146440.91430.50231.267
272.5244-0.73971.28862.7937-0.81752.42160.1226-0.15520.02540.2183-0.03920.19430.1782-0.0564-0.0834-0.0333-0.03390.0382-0.0624-0.0406-0.173950.09628.59926.964
283.2257-0.4783-3.03534.20262.915910.93020.2685-0.20050.16710.2985-0.034-0.28750.02670.3455-0.2346-0.0139-0.05830.0027-0.06340.0058-0.146357.49635.42325.584
291.7165-0.7959-1.75111.31761.22782.3962-0.0630.1762-0.14550.1559-0.12430.080.157-0.16240.1873-0.0714-0.02820.0387-0.0188-0.0587-0.16595414.53114.412
303.4219-1.38760.0362.11580.20261.12310.0071-0.03650.04670.2546-0.04220.05030.09480.00520.0351-0.0567-0.03180.0242-0.0595-0.0178-0.180150.6524.88124.642
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1A1 - 12
2X-RAY DIFFRACTION2A13 - 55
3X-RAY DIFFRACTION3A56 - 80
4X-RAY DIFFRACTION4A81 - 92
5X-RAY DIFFRACTION5A93 - 120
6X-RAY DIFFRACTION6A121 - 151
7X-RAY DIFFRACTION7A152 - 181
8X-RAY DIFFRACTION8A182 - 188
9X-RAY DIFFRACTION9A189 - 223
10X-RAY DIFFRACTION10A224 - 253
11X-RAY DIFFRACTION11A254 - 267
12X-RAY DIFFRACTION12A268 - 306
13X-RAY DIFFRACTION13A307 - 346
14X-RAY DIFFRACTION14A347 - 363
15X-RAY DIFFRACTION15A364 - 377
16X-RAY DIFFRACTION16B2 - 10
17X-RAY DIFFRACTION17B11 - 20
18X-RAY DIFFRACTION18B21 - 55
19X-RAY DIFFRACTION19B56 - 67
20X-RAY DIFFRACTION20B68 - 77
21X-RAY DIFFRACTION21B78 - 88
22X-RAY DIFFRACTION22B89 - 108
23X-RAY DIFFRACTION23B109 - 140
24X-RAY DIFFRACTION24B141 - 159
25X-RAY DIFFRACTION25B160 - 180
26X-RAY DIFFRACTION26B181 - 223
27X-RAY DIFFRACTION27B224 - 248
28X-RAY DIFFRACTION28B249 - 266
29X-RAY DIFFRACTION29B267 - 350
30X-RAY DIFFRACTION30B351 - 377

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